MYSTERIIS is an enigmatic music project that dwells within the dark and intense realm of black metal. The band, whose members retain an air of mystery by concealing their true identities, has attracted attention within the underground metal community through their blasphemous and provocative themes. Not much is known about the origins or the personae behind MYSTERIIS, adding to the intrigue and the allure that surrounds their work.

The music of MYSTERIIS is characterized by its raw and unrelenting sound, with lyrical content that delves into anti-religious sentiment and existential despair, often challenging established belief systems with a ferocious sonic assault. Their recent releases, including "Hellsurrection," with its aggressive riffs and harrowing screams, "Fucking in the Name of God," featuring a controversial title that speaks volumes of their irreverence, and "About the Christian Despair," which explores the darker aspects of religious fanaticism, have solidified their standing in the black metal scene as one of the more provocative acts that aren’t afraid to confront taboo subjects head-on. Despite their confrontational stance, or perhaps because of it, MYSTERIIS has garnered a dedicated following eager for music that not only shakes the foundations of genre but of society’s norms as well.